野火燃烧强度与恢复
两期之间的燃烧强度，其下分离焦炭、灰烬、土壤与绿色覆盖，并跟踪后续日期的恢复。
两期之间的燃烧强度，解混焦炭与灰烬，部分燃烧的像元读作部分燃烧。
Differenced normalised burn ratio between a pre-fire and a post-fire scene, with the recovery series alongside.
它能发现什么
它检测什么。
| 材料 | 典型产出环境 | 可能的混淆因素 |
|---|---|---|
| Wildfire Burn Severity | Post-fire forest landscapes, chaparral, and savannahs | Pre-existing drought stress and agricultural harvesting |
方法
工作原理。
输入校准反射率，每个像元都对照公开参考库进行拟合。
Pairing the two dates
The pre-fire and post-fire scenes are placed on a common grid. Pairing across different sensors is refused, and so is pairing results that came from different engines, because the difference would be measuring the method rather than the ground.
Burn ratio, absolute and relative
Computes the standard differenced burn ratio and the relativised version, which matters where pre-fire cover was already sparse.
Char, ash, soil and green fractions
Burned pixels are decomposed into fractions rather than assigned a single label, so a partially burned pixel reads as partially burned.
Severity classes
The landscape is binned into unburned, low, moderate and high severity using published thresholds. A difference that comes out entirely empty raises an error instead of reporting that nothing changed.
技术规格
您得到什么，它在什么数据上运行。
所需环境条件
Method and checks are documented in Axine Applied Spectroscopy Paper #4 · Section 5.3.
适用边界
Timing decides the answer, so the interval between the fire and the scene is reported with the layer.
